The number of the students in our school ________ about 3000 and ______ them study hard.
| A．is, a large amount of | B．are, a number of |
| C．are, large amount of | D．is, a large number of |
My brother John wants to work in the factory which _______ still _______.
A new planet has been discovered recently. It’s ______ Earth，and hopefully it can support human life.
| A．almost three times the size of | B．three times the size than |
| C．three times almost as large as | D．almost three times as larger as |